CA948294A - Digital electrofluidic servo actuator - Google Patents

Digital electrofluidic servo actuator

Info

Publication number
CA948294A
CA948294A CA102,031A CA102031A CA948294A CA 948294 A CA948294 A CA 948294A CA 102031 A CA102031 A CA 102031A CA 948294 A CA948294 A CA 948294A
Authority
CA
Canada
Prior art keywords
electrofluidic
digital
servo actuator
servo
actuator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA102,031A
Other versions
CA102031S (en
Inventor
Gerald F. Simons
Frederick W. Lynch
Gary C. Mckown
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sperry Corp
Original Assignee
Sperry Rand Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sperry Rand Corp filed Critical Sperry Rand Corp
Application granted granted Critical
Publication of CA948294A publication Critical patent/CA948294A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • F15B9/09—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor with electrical control means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control means
    • F15B21/087—Control strategy, e.g. with block diagram
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
    • G05B19/40—Open loop systems, e.g. using stepping motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Stepping Motors (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Mechanical Control Devices (AREA)
CA102,031A 1970-04-27 1971-01-05 Digital electrofluidic servo actuator Expired CA948294A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3190570A 1970-04-27 1970-04-27

Publications (1)

Publication Number Publication Date
CA948294A true CA948294A (en) 1974-05-28

Family

ID=21862045

Family Applications (1)

Application Number Title Priority Date Filing Date
CA102,031A Expired CA948294A (en) 1970-04-27 1971-01-05 Digital electrofluidic servo actuator

Country Status (5)

Country Link
US (1) US3664234A (en)
CA (1) CA948294A (en)
DE (1) DE2120661A1 (en)
FR (1) FR2086381A1 (en)
GB (1) GB1343681A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763745A (en) * 1972-01-28 1973-10-09 Chandler Evans Inc Closed center valve control system
US3768373A (en) * 1972-08-28 1973-10-30 Chandler Evans Inc Linearized pressure gain module
US4235156A (en) * 1978-11-16 1980-11-25 Zenny Olsen Digital servovalve and method of operation
DE3140301A1 (en) * 1981-10-10 1983-04-28 Bosch und Pierburg System oHG, 4040 Neuss CONTROL DEVICE FOR A PRESSURE CONTROLLED ACTUATOR
GB2140871A (en) * 1983-06-03 1984-12-05 Bowthorpe Hellermann Ltd Piston and cylinder actuator control
US5129310A (en) * 1990-06-15 1992-07-14 Hydraulic Units, Incorporated Auto rigging for servo actuator system
MX9300781A (en) * 1992-02-13 1993-09-30 Johnson Service Co ELECTRONIC PILOT POSITIONER.
DE4410103C1 (en) * 1994-03-21 1995-08-31 Mannesmann Ag Drive of the fluidic or electrical type with a control
US6368522B1 (en) * 2000-01-03 2002-04-09 Johnson & Johnson Vision Care, Inc. Mold for forming a contact lens and method of preventing formation of small strands of contact lens material during contact lens manufacture
DE102009005998B4 (en) * 2009-01-23 2012-12-27 Voith Patent Gmbh Hydraulic drive device with two pressure chambers and method for operating a hydraulic drive device with two pressure chambers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079899A (en) * 1959-05-29 1963-03-05 Fuji Tsushinki Seizo Kk Feedback-type oil-hydraulic drive
US3222996A (en) * 1963-03-29 1965-12-14 Honeywell Inc Controlling apparatus
US3216331A (en) * 1963-05-24 1965-11-09 Robertshaw Controls Co Electric-pneumatic process controller
US3266378A (en) * 1964-06-16 1966-08-16 Jared W Shaw Variable gain solenoid valve control system

Also Published As

Publication number Publication date
US3664234A (en) 1972-05-23
GB1343681A (en) 1974-01-16
DE2120661A1 (en) 1972-11-09
FR2086381A1 (en) 1971-12-31

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